Preparation of imidazoles

Details Preparation of imidazoles Preparation of imidazoles

1993-08-16

1994-05-17

Raymond, Richard L.

Organic compounds -- part of the class 532-570 series

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

5483355, 5483361, 5483411, 5483425, 5483431, 5483435, 5483451, 5483461, 548235, 548247, 546193, 546194, 546200, 546210, 546272, 546278, 544122, 544370, C07D23356, C07D23358, C07D23364

Patent

active

053129270

ABSTRACT:
The present invention relates to preparation of imidazoles which are useful as pharmaceutical and agricultural chemicals. Specifically, the present invention relates to a process for preparing imidazoles of the formula (I): ##STR1## which comprises conducting condensation among an .alpha.,.alpha.-dihaloaldehyde compound of the formula (II): ##STR2## an aldehyde compound of the formula: R.sup.2 --CHO and aqueous ammonia.

REFERENCES:
patent: 4377696 (1983-03-01), Graf
patent: 4409389 (1983-10-01), Bellas et al.
March, Advanced Organic Chemistry-Reactions, Mechanisms and Structure, 4th Edition, John Wiley & Sons, New York, 1992, p. 896.

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